backfiring through throttle body

[sharps45100]

Please help! I have done the right side caddman mod. I disconnected the solinoids but left them in. Put vance and hines baggers on. I get backfiring through throttle body occasionally. Also with the solinoids disconnected there is still alot of clicking or ticking sound. I have plugged the line for the reed valves. also should I have put anti seize on where the mufflers mate the pipes? I know macmac addressed this in a thread earlier but I can't find it. I do get popping on decel but not all the time. Now comes the biggyquestion.....when I put my pipes on I put anti seize on exhaust threads with flat washer and lock washer. I was never able to get torque wrench to click on 12 ft lbs. My exhaust flanges are both curved in by bolts. did I screw up my install and my pipes? Man I hope not, wife loves the sound of pipes and so do I but I don't like the backfiring. All replies will be greatly appreciated! Thanks Sharps.